B3313221211233132322331321123233313231333132233133313331333132312322131   >>    B331322121123313232233132112323331323133313223313331333133313231232213   <<    B3313221211233132322331321123233313231333132233133313331333132312322133   >>      B3313221211233132322331321123233313231333132233133313331333132312322132   >>